Metal dish tray for dishwashing machines



May 27, 1930. w. B. KAUFFMANN METAL DISH TRAY FOR DISHWASHING MACHINES 2Sheets-Sheet 1 Filed Jan. 28, 1928 (5 O0 o c 9 g auvemtoz 83; 2 Gummy II v W vgmf/ May 27, 1930. w. B. KAUFFMANN METAL DISH TRAY FORDISHWASHING MACI'iINES Filed Jan. 28, 1928 2 Sheets-Sheet 2 0 o 0 0/?0 0o o (ZZ ooo o'ooooooooo 0 000000000 000; eooooooooo/mao oo OOOOQOOOO-OOOOOUOO QQOOOOO 0 ZL//8 /7 zawz /8 00096060000000 Patented May 27, 193%)res PAT NT orrice WALTER BEBNHEIM KAUFFMANN, OF BOSTON, MASSACHUSETTS,ASSIGNOR, BY

MESNE ASSIGNMENTS, T EDWARD S. FOSTER, OF BOSTON, MASSACHUSETTS METALDISH TRAY FOP. DZSHWASHING MACHINES Application filed January 28, 1928.Serial No. 250,131.-

This invention relates to improvements in metal dish trays and moreparticularly to that type of metal dish tray used in connection withdish washing machines.

One of the objects of the invention is to provide a tray of this typewhich is so constructed as to allow the placing of the dishes or thelike, to be washed, in the tray in such a manner that they will not comeinto con- 1G tact with each other during the washing operation.

A further object of the invention is to provide a tray of this type soconstructed that dishes or the like placed therein will be sub- 1jectedto a minimum contact with metal parts of the tray. 7 v

A further object of the invent-ion is to provide a metal dish tray fordish washing machines so constructed that a number of trays may beplaced one on top of each other during the working operation orafterwards without the parts of any one tray coming in contact withthe'dishes or the like placed in the next adjacent tray.

Afurther object of the'invention is to pro vide a construction of metaldish tray whereby provision is made to permit the water sprays of awashing machine to strike all parts of the dishes being washed and toallow the water from. said sprays to quickly I leave the tray after thewashing operation has been completed.

A further object includes the provision of means for allowing the rapidreplacing of certain parts of the tray in case of breakage thereof. Myinvention provides a tray constructed with compartments of such size asto allow the placing of cups, glasses and other dishes therein, eachcompartment accommodating as a unit the individual cup, glass or otherdish thereby preventing the same from coming in contact with each-otheror with the metal to prevent breaking when the tray is used for washingdishes. The construc tion of thetray is further also adapted for thestoring of the dishes without removing the same from the tray. Thebottom ofthe tray is so constructed that the cups, glasses 53nd otherdishes rest on wooden fiber or other composition rods or dowels, therebypreventing the dishes from becoming marked or discolored. Theconstruction of the tray allows for replacement of said rods or dowelsin th event that one or more should become broken.

A suitable collar is provided to fasten the dowels in position. This maybe a ring or collar or a spring wire or metal clip.

Other objects of the invention will be apparent from the followingdescription of the preferred form of embodiment of my invention which isillustrated in the accompanying drawings forming part of thisspecification. V

In the drawings,

Figure 1 is a'plan view of a construction embodying the principles of myinvention;

Fig. 2 is an end view. thereof;

' Fig. 3 is a sectional view taken on the line NN Figure 1, looking inthe direction of the arrows;

Fig. 4 is a sectional view taken on the line w-wFigure 1, looking in thedirection of the arrows; and

Fig. 5 is an enlarged View of one end of Figure 3. V

Like numerals refer to similar throughout the several views.

Referring now to the drawings, the tray is composed of the four sideportions or walls 1, 2, 3 and 4 which are made ofany suitable metal andhave a plurality of perforations therein indicated at 5. The upper andlower edges of the side portions are reinforced by; metal strips 6and-Twhich are adapted to be bent over the edges of the side portion andare secured thereto by rivets or other suitable means.

parts The corners of the tray formed by the jointhe side portions 1, 2,3 and 4t and the said up-- wardly projecting portion of each of theangle pieces 13 bent outwardly as at 12, so as p to form an angularrecess adapted to receive one of the corners formed by the lower edgesof the side portions of another similarly con structed tray when saidtray is placed on top 1 thereof.

The sides 1 and 2 of the tray are provided with openings 13 and 14 toallow the insen I edges of the spacing members 13, 1% and 15 7 metalrods;

are reinforced by metal strips 16 and 17 which arebent over the edgesand secured to the same in any suitable manner. The spacing members 13,14 and 15 are less in width than the side portions 1, 2 and 3;

The reinforcing strips 16 of the metal spacing members 13, 1 1 and 15are provided with openings adapted to receive the metal spacing rods 20,21 and 22 which are secured at their ends to the reinforcing strips 6 ofthe side portions 1 and 3.

The side portions 1 and '3 and the reinforcing strips 17 of the spacingmembers 13, 1A; and 15 are also provided with openings there throughadapted to receivetho wooden rods 18. The side portions and spacingmembers are also provided with openings to receive the wooden bufferrods 19.

The'rods 18 extend acrossthe tray and are disposed parallel with eachother and spaced a predetermined distance apt t and above theibottomedge of the tray. The rods" are disposed across the tray and para lel iteach other and rods 18 and are positioned a predetermined distance aboverods 18 and directely under the metal spacing rods 20, 21 and 22. Therods or dowels 18 and 19 are of a greater circumference than tlie metalrods 20, 21 and 22 and are-of wood or fiber to prevent breakage orstaining.

The wooden rods 18 and 19 are prevented from slipping out of position bymeans of colinrs 23 on the inner sides of opposite sine Walls, as thewalls 1 and 3. In these collars and 19 c etachably secured by anySulfllblfi means such as by screws 24. V

It will be seenby the above construction and arrangement of the partsthere is pro-- vided a'tray-adaptable for use in dish ning machineswhich is divided up into compartments in which individual dishes cups,such as is indicated bythe numeral in Figure 1, may be placed and saiddishor cup will be supported upon the woodenrr i 18 extending across thetray andthe disi or cup will not havecontact with any of the metalportions wooden rods 19 prevent the dish or cup from striking the metalrods 2 21 or 22 beca e circunii'c ence than said metal rods and,therefore, will. save the dish or cup from striking the The fact thatthe wooden supporting rods '18 are positioned a considerable distanceabove the lower edge of the tray allows the o of the tray except theperforated spacer members 13, 141- and 15.7 The nesting of the trays inthe angular corner recesses formed in the angle pieces 9, one above theother without the dishes .or cups in any particular tray coming incontactwith the dishes of its next adjacent tray. I

The position of the rods 18 and 19 for supporting andspacing the dishesin the tray also allows the free access of the water sprays of thewashing machine to the dishes to be washed and allows the water toimmediately drain ofi? from said dishes and away from the tray. 7 i

The perforated sides'of'the tray and the perforated spacing members 15also facili tate the quick draining off of the water after the disheshave been subjected to the spray ing process.

Having now described my invention, what I claim as new and useful, of myown invention, and desire to secure by Letters Patent is 1. In arectangular tray construction for use in dish washing machines, thecombination of perforated metal side members having their upper andlower edges reinforcedby metal strips secured thereto, metal reinforcingplates secured to the corners formed by the joinder of said side memberswith each other, a plurality of perforated metal spacing strips of lesswidth than said side members, and secured to and extending at pre- 7determined intervals between two of said side members, metal reinforcingstrips secured to the upper and lower edges of said metal spacingstrips, a plurality of metal spacing rods secured to the upperreinforced portions of and extending between the other two side membersand said metal spacing strips, and

a plurality of parallel woodenrods spaced,-

for use in dish vide a seat for receiving the bottom corners} of asimilar tray, a plurality of perforated metal strips of less width thanthe perforated metal side members of the tray, and secure to andextending atpredetermined intervals between two of said side members sothat the upper edges of the said. spacing strips: are flush with theupper edges of said side members,'a'plurality of metal spacing rodssecured to and extending at predetermined intervals between the othertwoside membersand passing throughthe upper portions-of said spacj ingstrips, a plurality ofparal-lel wooden rods 9 disposed at predeterminedintervals with rea spect to each other and removably supported by andextending through the last mentioned side members and the lower portionsof said spacing strips and a plurality of parallel wooden rods removablysupported by and extending through said side members and perforatedspacing strips and disposed above and at predetermined intervals fromsaid first mentioned wooden rods and from each other. 3. In arectangular tray construction for use in dish Washing machines, thecombination of metal perforated side members having reinforced upper andlower edges, metal reinforcing plates secured to the corners of saidtray, said reinforcing plates extending above the upper edges of theside members and shaped to form a seat to receive the bottom corners ofa similar shaped tray, a plurality of perforated metal spacing membersof less width than said side members and having reinforced upper andlower edges, said spacing members secured to and extending atpredetermined intervals between two of said side members, a plurality ofmetal spacing rods secured to the upper portions of and extendingbetweenthe other two side members and said metal spacing strips, aplurality of removable wooden rods of larger diameter than said metalspacing rods and spaced at so predetermined intervals with respect toeach other and extending through said last mentioned side members andthe lower reinforced portions of said perforated strips, a plurality ofremovable wooden rods of the same diameter positioned above, parallel toand a predetermined distance from, said first men tioned wooden rods andextending through the same side members and perforated spacing strips,and means for securing said rods 49 in fixed position with respect tosaid side members and spacing strips.

4:. In a tray construction for use in dish washing machines, thecombination'of perforated side members, a plurality of perforatedspacing members equidistantly disposed between two of said side members,a plurality of spacing rods equidistantly disposed transversely of saidspacing members and between the other two side members, a

plurality of removable wooden rods supported by and extending throughthe last mentioned side members and said perforated spacing members,said wooden rods being spaced a predetermined distance apart, means forsecuring said rods in fixed position with respect to said side membersand spacing strips and means secured to the upper corners of said trayfor receiving and retaining the corners of a similar tray when saidsimilar tray is placed on top thereof.

In testimony whereof I havehereunto set my hand on this 24th day of January A. D. 1928.

WALTER BERNHEIM KAUFFMANN.

